NAICS Code 335999 — All Other Miscellaneous Electrical Equipment and Component Manufacturing

National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is one of 2 national industries under 33599 (All Other Electrical Equipment and Component Manufacturing).

Code	335999
Title	All Other Miscellaneous Electrical Equipment and Component Manufacturing
Level	National Industry (6-digit)
Edition	NAICS 2022 edition
SBA size standard	600 employees

Official definition (2022 NAICS)

This U.S. industry comprises establishments primarily engaged in manufacturing industrial and commercial electric apparatus and other equipment (except lighting equipment, household appliances, transformers, motors, generators, switchgear, relays, industrial controls, batteries, communication and energy wire and cable, wiring devices, and carbon and graphite products). Examples of products made by these establishments are power converters (i.e., AC to DC and DC to AC), power supplies, surge suppressors, and similar equipment for industrial-type and consumer-type equipment.

Illustrative Examples:

Appliance cords made from purchased insulated wire

Battery chargers, solid-state, manufacturing

Door opening and closing devices, electrical, manufacturing

Electric bells manufacturing

Extension cords made from purchased insulated wire

Inverters manufacturing

Surge suppressers manufacturing

Uninterruptible power supplies (UPS) manufacturing

Is a business under 335999 "small"?

Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 335999 qualifies as a small business if it does not exceed 600 employees. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — employee count is averaged over the latest 24 months.

Where 335999 sits in the hierarchy

Level	Code	Title
Sector	31-33	Manufacturing
Subsector	335	Electrical Equipment, Appliance, and Component Manufacturing
Industry Group	3359	Other Electrical Equipment and Component Manufacturing
NAICS Industry	33599	All Other Electrical Equipment and Component Manufacturing
National Industry	335999	All Other Miscellaneous Electrical Equipment and Component Manufacturing

Related SIC codes

Via the official U.S. Census concordance (1987 SIC ↔ NAICS), shown only where the industry definition is unchanged in NAICS 2022.

SIC code	Title
3629	Electrical Industrial Apparatus, Not Elsewhere Classified
3699	Electrical Machinery, Equipment, and Supplies, Not Elsewhere Classified

Related National Industry codes

• 335991 — Carbon and Graphite Product Manufacturing

Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.